使用zk搭建一个3节点的zk集群，网络方式为host。
配置节点1
# 创建一个目录
/root/lyl/zookeeper/zk1
创建文件myid，文件内容如下：
1
创建文件zoo.cfg，文件内容如下：
# The number of milliseconds of each tick
tickTime=2000
# The number of ticks that the initial
# synchronization phase can take
initLimit=10
# The number of ticks that can pass between
# sending a request and getting an acknowledgement
syncLimit=5
# the directory where the snapshot is stored.
# do not use /tmp for storage, /tmp here is just
# example sakes.
dataDir=/data
# the port at which the clients will connect
clientPort=2181
# the maximum number of client connections.
# increase this if you need to handle more clients
#maxClientCnxns=60
#
# Be sure to read the maintenance section of the
# administrator guide before turning on autopurge.
#
# http://zookeeper.apache.org/doc/current/zookeeperAdmin.html#sc_maintenance
#
# The number of snapshots to retain in dataDir
#autopurge.snapRetainCount=3
# Purge task interval in hours
# Set to "0" to disable auto purge feature
#autopurge.purgeInterval=1
4lw.commands.whitelist=ruok,srvr,stat,conf
server.1=localhost:2888:3888
server.2=localhost:2889:3889
server.3=localhost:2890:3890
创建启动文件startzk.sh，文件内容如下：
#!/bin/sh
docker rm -f myzookeeper1
docker run --network host -v /root/lyl/zookeeper/zk1/myid:/data/myid -v /root/lyl/zookeeper/zk1/zoo.cfg:/conf/zoo.cfg --name myzookeeper1 --restart always -d zookeeper:3.9.2
完成。
配置节点2
# 创建一个目录
/root/lyl/zookeeper/zk2
创建文件myid，文件内容如下：
2
创建文件zoo.cfg，文件内容如下：
# The number of milliseconds of each tick
tickTime=2000
# The number of ticks that the initial
# synchronization phase can take
initLimit=10
# The number of ticks that can pass between
# sending a request and getting an acknowledgement
syncLimit=5
# the directory where the snapshot is stored.
# do not use /tmp for storage, /tmp here is just
# example sakes.
dataDir=/data
# the port at which the clients will connect
clientPort=2182
# the maximum number of client connections.
# increase this if you need to handle more clients
#maxClientCnxns=60
#
# Be sure to read the maintenance section of the
# administrator guide before turning on autopurge.
#
# http://zookeeper.apache.org/doc/current/zookeeperAdmin.html#sc_maintenance
#
# The number of snapshots to retain in dataDir
#autopurge.snapRetainCount=3
# Purge task interval in hours
# Set to "0" to disable auto purge feature
#autopurge.purgeInterval=1
4lw.commands.whitelist=ruok,srvr,stat,conf
server.1=localhost:2888:3888
server.2=localhost:2889:3889
server.3=localhost:2890:3890
创建启动文件startzk.sh，文件内容如下：
#!/bin/sh
docker rm -f myzookeeper2
docker run --network host -v /root/lyl/zookeeper/zk2/myid:/data/myid -v /root/lyl/zookeeper/zk2/zoo.cfg:/conf/zoo.cfg --name myzookeeper2 --restart always -d zookeeper:3.9.2
完成节点2配置。
配置节点3
# 创建一个目录
/root/lyl/zookeeper/zk3
创建文件myid，文件内容如下：
3
创建文件zoo.cfg，文件内容如下：
# The number of milliseconds of each tick
tickTime=2000
# The number of ticks that the initial
# synchronization phase can take
initLimit=10
# The number of ticks that can pass between
# sending a request and getting an acknowledgement
syncLimit=5
# the directory where the snapshot is stored.
# do not use /tmp for storage, /tmp here is just
# example sakes.
dataDir=/data
# the port at which the clients will connect
clientPort=2183
# the maximum number of client connections.
# increase this if you need to handle more clients
#maxClientCnxns=60
#
# Be sure to read the maintenance section of the
# administrator guide before turning on autopurge.
#
# http://zookeeper.apache.org/doc/current/zookeeperAdmin.html#sc_maintenance
#
# The number of snapshots to retain in dataDir
#autopurge.snapRetainCount=3
# Purge task interval in hours
# Set to "0" to disable auto purge feature
#autopurge.purgeInterval=1
4lw.commands.whitelist=ruok,srvr,stat,conf
server.1=localhost:2888:3888
server.2=localhost:2889:3889
server.3=localhost:2890:3890
创建启动文件startzk.sh，文件内容如下：
#!/bin/sh
docker rm -f myzookeeper3
docker run --network host -v /root/lyl/zookeeper/zk3/myid:/data/myid -v /root/lyl/zookeeper/zk3/zoo.cfg:/conf/zoo.cfg --name myzookeeper3 --restart always -d zookeeper:3.9.2
完成。